Quoting: angel eyes
ok so lets see in muslim culture its ok to have more than one woman
No it's not, read above. It's middle-eastern, christian-mormon, african cultural thing. Go to Turkey, Indonesia or Morocco & see how long you last with 3 wives before you end up in jail. I wrote it above :(
but is there any such thing as a culture where women can have more than one husband ?
Yes, it's not called polygyny then but polyandry, you can find it in Asia: Parts of India, Sri Lanka, Tibet, China, Mongolia & in African tribes.
Jalousy? dunno.. I find jealousy a very odd feeling.. When I'm jealous for some reason or the other I'm always ashamed or guilty of having had that feeling towards someone.. it's very hard to get around it, can destroy people's love lives if they cannot control it